in the US, the league of professional sports teams at the highest level, especially in baseball

Compare: big league Little Leagueminor league

See also: league (SPORT)

belonging or relating to sport in a major league in the US

major-league baseball 大联盟篮球

important and having a lot of influence

The people on the board of directors all have major-league business experience. 董事会成员都有很强的商业经验。